Separability of Mixed States: Necessary and Sufficient Conditions
Quantum Physics
2009-10-30 v2
Abstract
We provide necessary and sufficient conditions for separability of mixed states. As a result we obtain a simple criterion of separability for and systems. Here, the positivity of the partial transposition of a state is necessary and sufficient for its separability. However, it is not the case in general. Some examples of mixtures which demonstrate the utility of the criterion are considered.
Keywords
Cite
@article{arxiv.quant-ph/9605038,
title = {Separability of Mixed States: Necessary and Sufficient Conditions},
author = {Michal Horodecki and Pawel Horodecki and Ryszard Horodecki},
journal= {arXiv preprint arXiv:quant-ph/9605038},
year = {2009}
}
Comments
Revtex, 13 pages, replaced with minor typos corrected and some examples added